基于51单片机的万年历,电路很简单,程序三百多行。。可调时,走了一晚上误差差不多十二秒。有兴趣的可以下载来做做,闹钟的那部分代码懒得写了有兴趣的小伙伴可以加上去哦
仿真原理图如下(proteus仿真工程文件可到本帖附件中下载)
单片机源程序如下:
- #include<reg52.h>
- #define uchar unsigned char
- #define uint unsigned int
- sbit RS=P2^7;
- sbit RW=P2^6;
- sbit EN=P2^5;
- sbit buzzer=P2^4;
- sbit DU=P2^0;
- sbit WE=P2^1;
- //*************************按键*************************
- sbit key1=P1^0; //设置键*************
- sbit key2=P1^4; //按键加***********
- sbit key3=P3^0; //按键减*************
- uchar code table[]="2019_03_07 THR";
- uchar code table1[]="13:14:20";
- uchar code table2[]="SUNMONTUSWENTHRFRISAT";
- uchar code table3[]=">_<[]=_=";
- uchar shi=15,fen=52,miao=0,time=0,week=4,ri=7,yue=3,nian=19,shiji=20;
- uchar keyln;
- //***********************延时函数***********************
- void delay(uchar z)
- {
- uchar x;
- while(z--)
- {
- for(x=110;x>0;x--);
- }
- }
- //*********************写指令函数************************
- void write_com(uchar com)
- {
- RS=0;
- RW=0;
- P0=com;
- delay(5);
- EN=1;
- delay(5);
- EN=0;
- }
- //**********************写数据函数**********************
- void write_date(uchar date)
- {
- RS=1;
- RW=0;
- P0=date;
- delay(5);
- EN=1;
- delay(5);
- EN=0;
- }
- //*********************初始化函数************************
- void init()
- {
- uchar num;
- EN=0;
- RS=0;
- RW=0;
- write_com(0x38); //液晶工作模式
- write_com(0x0c); //开显示不显示光标
- write_com(0x06); //屏幕不移动,光标自右移动
- write_com(0x01); //清屏
- write_com(0x80+1); //从第二个开始
- for(num=0;num<14;num++)
- {
- write_date(table[num]);
- delay(5);
- }
- write_com(0x80+0x40+4);
- for(num=0;num<8;num++)
- {
- write_date(table1[num]);
- delay(5);
- }
- write_com(0x80+0x40);
- for(num=0;num<4;num++)
- {
- write_date(table3[num]);
- delay(5);
- }
- write_com(0x80+0x40+0x0c);
- for(num=4;num<8;num++)
- {
- write_date(table3[num]);
- delay(5);
- }
- TMOD=0x01;
- TH0=(65536-18451)/256;
- TL0=(65536-18451)%256;
- EA=1;
- ET0=1;
- TR0=1;
- }
- //*******************时分秒处理及显示函数*****************
- void jishi(uchar add,uchar haha)
- {
- uchar i,j;
- i=haha/10;
- j=haha%10;
- write_com(0x80+0x40+add);
- write_date(0x30+j);
- write_com(0x80+0x40+add-1);
- write_date(0x30+i);
- }
- //*****************日,月,年,世纪处理及显示函数*********
- void qingchun(uchar add,uchar haha)
- {
- uchar i,j;
- i=haha/10;
- j=haha%10;
- write_com(0x80+add);
- write_date(0x30+j);
- write_com(0x80+add-1);
- write_date(0x30+i);
- }
- //*********************星期显示函数***********************
- void xingqi(uchar z)
- {
- write_com(0x80+0x0c);
- write_date(table2[3*z]);
- write_com(0x80+0x0d);
- write_date(table2[3*z+1]);
- write_com(0x80+0x0e);
- write_date(table2[3*z+2]);
- }
- //**********************闰年判断函数*************
- uchar nianer(uchar b,uchar c)
- {
- uchar d;
- if(((c*100+b)%4==0&&(c*100+b!=0)||(c*100+b)%4==0))
- d=1;
- else
- d=0;
- return d;
- }
- //************************调时函数***************
- void keyscan()
- {
-
- if(key1==0)
- {
- delay(1);
- if(key1==0)
- {
- buzzer=0;
- delay(5);
- buzzer=1;
- while(!key1);
- keyln++;
- if(keyln==9)
- keyln=1; // 设置按键八个功能,秒,分,时,星期,日,月,年,返回;
- switch(keyln)
- {
- case 1:write_com(0x80+0x40+0x0b);write_com(0x0f);TR0=0; break; //miao
- case 2:write_com(0x80+0x40+8); break; //fen
- case 3:write_com(0x80+0x40+5); break; //shi
- case 4:write_com(0x80+0x0e); break; //week
- case 5:write_com(0x80+0x0a); break; //ri
- case 6:write_com(0x80+0x07); break; //yue
- case 7:write_com(0x80+0x04); break; //nian
- case 8:write_com(0x0c); TR0=1; break; //fanhui
-
- }
- }
- }
- if(keyln!=0)
- {
- if(key3==0) //下调键
- {
- delay(1);
- if(key3==0)
- {
- buzzer=0;
- delay(5);
- buzzer=1;
- while(!key3);
- switch(keyln)
- {
- case 1:miao--;
- if(miao==60) miao=0;
- jishi(11,miao);break;
- case 2:fen--;
- if(fen==60) fen=0;
- jishi(8,fen);break;
- case 3:shi--;
- if(shi==24) shi=0;
- jishi(5,shi);break;
- case 4:week--;
- if(week==8) week=1;
- xingqi(week);break;
- case 5:ri--;
- if(ri==32) ri=1;
- qingchun(10,ri);break;
- case 6:yue--;
- if(yue==13) yue=1;
- qingchun(7,yue);break;
- case 7:nian--;
- if(nian==100) nian=0;
- qingchun(4,nian);break;
- }
- }
- }
- }
- if(keyln!=0)
- {
- if(key2==0) //上调键
- {
- delay(1);
- if(key2==0)
- {
- buzzer=0;
- delay(5);
- buzzer=1;
- while(!key2);
- switch(keyln)
- {
- case 1:miao++;
- if(miao==60) miao=0;
- jishi(11,miao);break;
- case 2:fen++;
- if(fen==60) fen=0;
- jishi(8,fen);break;
- case 3:shi++;
- if(shi==24) shi=0;
- jishi(5,shi);break;
- case 4:week++;
- if(week==8) week=1;
- xingqi(week);break;
- case 5:ri++;
- if(ri==32) ri=1;
- qingchun(10,ri);break;
- case 6:yue++;
- if(yue==13) yue=1;
- qingchun(7,yue);break;
- case 7:nian++;
- if(nian==100) nian=0;
- qingchun(4,nian);break;
- }
- }
- }
- }
- }
-
- //*******************每月天数=_=****************
- uchar yueer(uchar e)
- {
- uchar f;
- switch(e)
- {
- case 1:f=31;break;
- case 2:f=28;break;
- case 3:f=31;break;
- case 4:f=30;break;
- case 5:f=31;break;
- case 6:f=30;break;
- case 7:f=31;break;
- case 8:f=31;break;
- case 9:f=30;break;
- case 10:f=31;break;
- case 11:f=30;break;
- case 12:f=31;break;
- default: f=0;break;
- }
- return f;
- }
- //******************闹钟************************
- //*********************大哥大*******************
- void main()
- {
- DU=0;
- WE=0;
- init();
- while(1)
- {
- keyscan();
- if(time==50)
- {
- time=0;
- miao++;
- if(miao>=60)
- {
- miao=0;
- fen++;
- }
- jishi(11,miao);
- if(fen>=60)
- {
- fen=0;
- shi++;
- }
- jishi(8,fen);
- if(shi>=24)
- {
- shi=0;
- week++;
- ri++;
- }
- ……………………
- …………限于本文篇幅 余下代码请从51黑下载附件…………
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